@common saychel, I was just quoting you!
Sometimes we are quicker to point out how someone else needs to fix himself before seeing the same problem in ourselves.
As the Baal Shem Tov explains the reason why Nosson Hanovi gave Dovid Hamelech a mashal for the story of Bassheva, and only after Dovid gave a ruling in that case was he able to apply it to himself.
(הובא בלקוטי מהר”ן קמא קי”ג. וראה גם המבואר בלקוטי שיחות כ”ק אדמו”ר מליובאוויטש ח”ד ע’ 1208)